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    Method for forming positive electrode for lithium-ion secondary battery
    2.
    发明授权
    Method for forming positive electrode for lithium-ion secondary battery 有权
    锂离子二次电池正极形成方法

    公开(公告)号：US09373834B2

    公开(公告)日：2016-06-21

    申请号：US13710497

    申请日：2012-12-11

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Masaki Yamakaji ,  Rika Yatabe ,  Hiroatsu Todoriki

    IPC: B05D5/12 ,  H01M4/04 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/1397 ,  H01M4/62

    CPC classification number: H01M4/0404 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/1397 ,  H01M4/623 ,  H01M4/625 ,  Y02E60/122 ,  Y02P70/54

    Abstract: To provide a positive electrode for a lithium-ion secondary battery, which is highly filled with a positive electrode active material and has a high-density positive electrode active material layer. To provide a lithium-ion secondary battery having high capacity and improved cycle characteristics with use of the positive electrode. After graphene oxide is dispersed in a dispersion medium, a positive electrode active material is added and mixed to form a mixture. A binder is added to the mixture and mixed to form a positive electrode paste. The positive electrode paste is applied to a positive electrode current collector and the dispersion medium contained in the positive electrode paste is evaporated, and then, the graphene oxide is reduced, so that a positive electrode active material layer containing graphene is formed over the positive electrode current collector.

    Abstract translation: 为了提供高纯度的正极活性物质并具有高密度正极活性物质层的锂离子二次电池用正极。 使用正极来提供具有高容量和改进的循环特性的锂离子二次电池。 将氧化石墨烯分散在分散介质中后，加入正极活性物质并混合形成混合物。 向混合物中加入粘合剂并混合以形成正极浆料。 将正极浆料涂布在正极集电体上，将正极浆料中所含的分散介质蒸发，然后将石墨烯氧化物还原，从而在正极上形成含有石墨烯的正极活性物质层 集电器

    Power storage device
    3.
    发明授权
    Power storage device 有权
    蓄电装置

    公开(公告)号：US08945772B2

    公开(公告)日：2015-02-03

    申请号：US13644263

    申请日：2012-10-04

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Takahiro Kawakami ,  Hiroatsu Todoriki ,  Teppei Oguni ,  Takeshi Osada ,  Shunpei Yamazaki

    IPC: H01M4/131 ,  H01M4/62

    CPC classification number: H01M4/366 ,  H01M4/131 ,  H01M4/483 ,  H01M4/505 ,  H01M4/523 ,  H01M4/525 ,  H01M4/625 ,  H01M10/0525 ,  Y02E60/122

    Abstract: A power storage device a positive electrode including a positive electrode active material layer and a negative electrode including a negative electrode active material layer. The positive electrode active material layer includes a plurality of particles of x[Li2MnO3]-(1−x)[LiCo1/3Mn1/3Ni1/3O2] (obtained by assigning 0.5 to x, for example) which is a positive electrode active material, and multilayer graphene with which the plurality of particles of the positive electrode active material are at least partly connected to each other. In the multilayer graphene, a plurality of graphenes are stacked in a layered manner. The graphene contains a six-membered ring composed of carbon atoms, a poly-membered ring which is a seven or more-membered ring composed of carbon atoms, and an oxygen atom bonded to one or more of the carbon atoms in the six-membered ring and the poly-membered ring, which is a seven or more-membered ring.

    Abstract translation: 蓄电装置，包括正极活性物质层和含有负极活性物质层的负极的正极。 正极活性物质层包含多个x [Li 2 MnO 3] - （1-x）[LiCo1 / 3Mn1 / 3Ni1 / 3O2]（通过分配例如0.5〜x的x）作为正极活性物质的粒子， 以及所述多个正极活性物质的所述粒子至少部分地彼此连接的多层石墨烯。 在多层石墨烯中，以分层的方式层叠多个石墨烯。 石墨烯含有由碳原子组成的六元环，由碳原子构成的七元或更多元环的多元环，和与六元环中的一个或多个碳原子键合的氧原子 环和多元环，其为七元或多元环。

    POWER STORAGE DEVICE
    7.
    发明申请
    POWER STORAGE DEVICE 审中-公开
    电源存储设备

    公开(公告)号：US20160233031A1

    公开(公告)日：2016-08-11

    申请号：US15097565

    申请日：2016-04-13

    Applicant: Semiconductor Energy Laboratory Co., LTD.

    Inventor： Junpei Momo ,  Hiroatsu Todoriki ,  Kuniharu Nomoto

    IPC: H01G11/32 ,  H01G11/42 ,  H01G11/40 ,  H01G11/38 ,  H01G11/06 ,  H01G11/52 ,  H01G11/66 ,  H01G11/56 ,  H01G11/74 ,  H01G11/78 ,  H01G11/86 ,  H01M4/04 ,  H01M4/587 ,  H01M4/62 ,  H01M4/133 ,  H01M4/1393 ,  H01M10/0525 ,  H01M10/058 ,  H01G11/34

    Abstract: A power storage device with high output is provided, in which the specific surface area is increased while keeping the easy-to-handle particle size of its active material. The power storage device includes a positive electrode including a positive electrode current collector and a positive electrode active material layer, a negative electrode including a negative electrode current collector and a negative electrode active material layer, and an electrolyte. The negative electrode active material layer includes a negative electrode active material which is a particle in which a plurality of slices of graphite is overlapped with each other with a gap therebetween. It is preferable that the grain diameter of the particle be 1 μm to 50 μm. Further, it is preferable that the electrolyte be in contact with the gap between the slices of graphite.

    Abstract translation: 提供了具有高输出功率的蓄电装置，其中比表面积增加同时保持其活性材料的易于处理的粒度。 蓄电装置具备包括正极集电体和正极活性物质层的正极，负极集电体和负极活性物质层的负极以及电解质。 负极活性物质层包括负极活性物质，该负极活性物质是多个石墨片彼此重叠并具有间隙的粒子。 粒子的粒径优选为1μm〜50μm。 此外，优选电解质与石墨片之间的间隙接触。

    ELECTRIC DOUBLE LAYER CAPACITOR, LITHIUM ION CAPACITOR AND MANUFACTURING METHOD THEREOF
    10.
    发明申请
    ELECTRIC DOUBLE LAYER CAPACITOR, LITHIUM ION CAPACITOR AND MANUFACTURING METHOD THEREOF 审中-公开
    电双层电容器，锂离子电容器及其制造方法

    公开(公告)号：US20140230208A1

    公开(公告)日：2014-08-21

    申请号：US14263000

    申请日：2014-04-28

    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

    Inventor： Junpei Momo ,  Yumiko Saito ,  Rie Matsubara ,  Hiroatsu Todoriki

    IPC: H01G9/00

    CPC classification number: H01G9/0029 ,  H01G11/06 ,  H01G11/24 ,  H01G11/30 ,  H01G11/50 ,  H01G11/86 ,  H01G2009/0007 ,  Y02E60/13 ,  Y02T10/7022 ,  Y10T29/417

    Abstract: A thin energy storage device having high capacity is obtained. An energy storage device having high output is obtained. A current collector and an active material layer are formed in the same manufacturing step. The number of manufacturing steps of an energy storage device is reduced. The manufacturing cost of an energy storage device is suppressed. One embodiment of the present invention relates to an electric double layer capacitor which includes a pair of electrodes including a porous metal material, and an electrolyte provided between the pair of electrodes; or a lithium ion capacitor which includes a positive electrode that is a porous metal body functioning as a positive electrode current collector and a positive electrode active material layer, a negative electrode including a negative electrode current collector and a negative electrode active material layer, and an electrolyte provided between the positive electrode and the negative electrode.

    Abstract translation: 获得了具有高容量的薄能量储存装置。 获得具有高输出的能量存储装置。 在相同的制造步骤中形成集电体和活性物质层。 能量储存装置的制造步骤数量减少。 能量储存装置的制造成本被抑制。 本发明的一个实施例涉及一种双电层电容器，其包括一对包括多孔金属材料的电极和设置在该对电极之间的电解质; 或包括作为正极集电体的多孔金属体的正极和正极活性物质层的锂离子电容器，具有负极集电体和负极活性物质层的负极，以及 提供在正极和负极之间的电解质。

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